Ventilator for ovens.



Patented Aug. l4, I900.

W. L. CULVER.

VENTILATOR FOR OVENS.

(Application m'ea Feb. 5, 1900.

Sheet (No Model.)

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Patented Aug. l4, I900. W. L. CULVER.

VENTILATOR FOR ovens.

(Application filed Feb. 5, 1900.)

2 Sheets$heet 2,

(No Model.)

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IVALTER L. CULVER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE WROUGIIT IRON RANGE COMPANY, OF SAME PLACE.

VENTILATOR FOR OVENS.

SPECIFICATION forming part of Letters Patent No. 655,761, dated August 14, 1900. Application filed February 5, 1900. Serial No. 4,092. (No model.)

To all whom it may concern: out of its open position under influence of Be it known that I, WALTER L. OULVER, of weight 8 and to bring the pieces 7 over the the city of St. Louis, State of Missouri, have apertures 2 3. I provide a means for so doinvented certain new and useful Improveing, comprising the rod 9 pivotally secured 5 ments in Ventilators for Ovens, of which the to one of the pieces 7, the free end of said followingisafull,clear, and exactdescription, rod being supported in a guide 10, beyond reference being had to the accompanying which it projects a suitable distance and exdrawings, forming part hereof. tends through an aperture 11 in the oven- This invention relates to ventilators for door, and through which aperture the said I0 ovens; and it consists of the novel construcrod is free to operate. The said rod is of tion, combination, and arrangement of parts such length that when pushed inwardly until hereinafter shown, described, and claimed. its outer end is even with the outer surface The object of this invention is to provide a of the oven-door the pieces 7 are over the ventilator in ovens having a means whereby apertures 2 3 and the ventilator is entirely r 5 the said ventilator may be opened or closed closed. The rod and ventilator may be held from without the oven and without opening in this adjustment by the curtain 12, pivotthe oven-door. By such a construction the ally secured to the oven-door, and the normal necessity of opening the oven-door whenever position of which would be over the aperture it is desired to regulate the ventilator is ob- 11, and when so placed the outer end of the 2o viated and all unpleasant results incident rod 9 contacts therewith and holds the vento such an operation are avoided. tilator in a closed position. The said curtain In the drawings, Figure 1 is a sectional 12, however, is retained by the pin 13 in such view of an oven, showing myirnproved ventimanner that when placed in any position it later in use. Fig. 2 is a sectional view taken will remain there, its weight not being suf- 25 on the line 0b a of Fig. 1. Fig. 3 is a front ficient to draw it out of the desired adjustview of a port-ionof an oven in which my imment. The curtain 12 acts as an abutment proved ventilator is used. Fig. 4 is a View for the end of rod 9 to turnthe ventilator, so in perspective of a part'of the oven-door and as to close the same-thatis, so that the shows the means which I employ for regulatpieces 7 will overlie the openings 2 and 3 in 3o ing the ventilator exteriorly of the oven. the oven-Wall.

In the construction of the invention I se- It may be readily seen that the oven-door is cure the apertured plate 1 rigidly to the free to open at anytime and in whatever adinner face of the oven-wall in such manner j ustment the ventilator may be. \Vhen this that the apertures 2 through the said plate is done, the sliding bracketlet used in con- 35 register with similar apertures 3 in the ovennection with the oven-door slides upwardly wall. On the inner face of the said plate is in the guide 15 and'contacts with the lower a suitable annular seat at, pivotally secured end of the curtain 12 and pushes the same within which is a disk 5, having apertures 6 laterally, when the said curtain is in a posiequal in size to the apertures 2 3. The pieces tion over the aperture 11, and because of the 0 4o 7 between the apertures 6 are of a size equal manner in which it is mounted on the pin 13 to the size of the said apertures, and when the said curtain will retain the lateral adplaced before the apertures 2 3' effectually justment. As soon as the door is opened the close them, the movement of the piece 7 beweight 8 draws the ventilator around and ing limited by the usual stopmon one of the opens the same, and when the door is again 5 45 pieces and the stops m on the-plate 1. closed, the curtain 12 being removed from Integral with or suitably secured to one of over the aperture 11, the rod 9 projects the pieces '7 is a Weight 8,the purpose of through the said aperture and the ventilator which is to draw the pieces 7 away from the remains open until the rod is again pushed apertures 2, or, in other words, to hold the inwardly, Fig. 1. mo

5 ventilator open. In order to close the ven- It is desirable that the ventilator shall open tilator, it is necessary to retain the disk 5 when the oven-door opens in order to provide for the escape of the heated air, which would otherwise come into the operators face, be inconvenient, and perhaps cause injury. It is also desirable that the curtain 12 be moved from over the opening 11 in the oven-door when the latter is open, for the reason that otherwise on closing the oven-door the curtain will be forcibly struck by the rod 9 and eventually broken.

It will be noticed that the pivotal point of the sliding bracket is not on the same center as the pivotal connection of the door with the opening, but is to one side of such pivotal connection. Therefore when the door opens and closes the bracket, by this eccentric action of the pivot of the bracket With respect to that of the door, causes the bracket to move toward and from the opening 11 across the front of the oven-door.

A ventilator constructed in accordance with the above principles possesses superior advantages over those of ordinary construction in that it may be opened and closed without openingthe oven-door and allowing the fumes from the oven to escape into the room. By this improved construction the ventilator may be regulated by operating the rod 9 and all the above-mentioned inconveniences are obviated. In these and other respects the device possesses superior ad vantages over those of ordinary construction, and it is simple, convenient, and easily operated.

I claim- 1. In an oven, a ventilator comprising an apertured plate, the apertures of which register with similar apertures in the oven-wall, an apertured disk pivotally secured to the front face of the plate, a rod pivotally secu red to said disk for adjusting the same,and means for holding the rod in position to maintain the ventilator closed, said means being carried by the oven-door and adapted to permit the ventilator to be operated when the ovendoor is closed.

2. In an oven, a ventilator comprising an apertured plate, having an annular valveseat on its outer face, an apertured disk pivotally secured within said valve-seat, a weight integral with one side of said disk which normally .holds the ventilator open, a rod .pivotally secured to the said disk, the free end of which rod projects through an aperture in the oven-door, and a curtain pivotally secured to the said door for holding the said rod inwardly, thereby closing the ventilator, substantially as specified.

3. In an oven, a ventilator, comprising an apertured plate, the apertures of which register with like apertures in the oven-wall, an apertured disk pivotally secured to the said plate, a Weight integral with said disk Whereby the ventilator is held in open position, a rod pivotally securedto said disk for adjusting the same, a door for said oven adapted to move said rod endwise to close the ventilator as the oven-door is moved to closed position, said door carrying a curtain or stop to permit the ventilator to be moved toits open position by the action of the Weight while the oven-door remains closed, substantially as specified.

4. The combination with an oven provided with a door, of a ventilator secured to a wall of said oven, means carried by said ventilator adapted to be actuated by the closing of the door for closing said ventilator and actuated when the door is opened by gravity for opening said ventilator, and a stop on-the door for holding the ventilator closed, substantially as specified.

5. The combination with an oven provided with a door with an aperture formed therein, of a ventilator secured to one wall of said oven, an actuating-rod carried by said ventilator and projecting through the aperture in said door, a curtain adapted to cover said aperture, whereby said ventilator may be JOHN C. HIGDON, JOHN D. RIPPEY. 

